Yeah, I tried with and without a tuner (Elecraft T1) on a resonant 20m antenna. The T1 clicks and tunes with a green light. If I shout into the Mic I see the PWR bar jump up to 5. I'm wondering if it's the Mic Gain or the phsyical Mic that I'm using: https://qrpver.com/accessories/microphone-headset-tangent-for-a-radio-station-qrpver-mic-02.html

What Mic Gain setting are you using? Do you have any audio filters on?

Finally got my Minion SDR and tested it out tonight. How do you adjust the output power? When I'm transmitting, I'm not seeing anything more than 0.5 on the PWR meter. But in your videos, it looks like you're consistently at 5.